Ritn3D vs Sweet Home 3D
These are the two genuinely free unlimited floor plan tools worth comparing — no watermark, no project cap, no trial clock on either. Sweet Home 3D is a GPL open-source application that has been maintained since around 2005, with free desktop builds for Windows, macOS, and Linux, a free browser version, a large bundled furniture and texture library, and official iOS and Android apps that are paid. Ritn3D is a modern browser and phone tool whose editor is free forever, with free mobile apps and AI conversion of a floor plan into an interactive 3D model. This page compares them honestly, including where Sweet Home 3D wins.
Feature Comparison
| Feature | Ritn3D | Sweet Home 3D |
|---|---|---|
| Free Unlimited Drawing | ||
| No Watermark on Exports | ||
| Open Source | — | GPL |
| Works Fully Offline | Mobile apps | Desktop app |
| Free Mobile Apps | — | |
| Official Mobile Apps | Free | Paid |
| Browser Version | ||
| Bundled Furniture Library | Basic | 10,000+ models |
| AI Floor Plan Auto-Detection | — | |
| Interactive 3D Share Link | — | |
| STL Export for 3D Printing | — | |
| Starting Price | Free, Pro $9.99/mo | Free (paid mobile apps) |
Pricing Comparison
Sweet Home 3D is free software under the GNU General Public License. The desktop application for Windows, macOS, and Linux costs nothing, the online browser version costs nothing, and there is no premium tier, no subscription, and no upsell — it is community and donation supported. The one exception is mobile: the official Sweet Home 3D apps on the App Store and Google Play are paid. Ritn3D's floor plan editor is also free forever with unlimited plans and unwatermarked PNG and PDF exports, and its iOS and Android apps are free. Ritn3D charges only for AI 3D conversion volume — 3 renders a month free, Pro at $9.99/month for 20 renders with a 7-day trial, and Pro+ at $19.99/month for 40 renders plus 10 GLB or STL downloads. So on desktop both are free; on phones Ritn3D is free and Sweet Home 3D is not; and 3D conversion is the paid axis in Ritn3D that has no Sweet Home 3D equivalent.
When to Use Each
Choose Sweet Home 3D if you work on a desktop, want software with genuinely no commercial pressure, and value the bundled catalog. Over 10,000 furniture models and 400 textures ship with it, it runs entirely offline, the GPL licence means it cannot be taken away or paywalled later, and commercial use is unrestricted. For a hobbyist planning a home layout on a laptop, or anyone who distrusts subscription software on principle, it is hard to beat. Choose Ritn3D if you work on a phone or want 3D output. Ritn3D's mobile apps are free where Sweet Home 3D's are paid, the interface is built for touch rather than ported from a 2005 desktop app, and it converts a plan into an interactive 3D model you can send as a browser link that needs no install on the recipient's side. It also exports STL for 3D printing. If your plan needs to reach a client, a buyer, or a printer, that gap matters more than catalog size.
Our Verdict
Both are honestly free for unlimited floor plan drawing, which is rare, and Sweet Home 3D deserves credit for two decades of it. Pick Sweet Home 3D for desktop work, offline use, a huge bundled furniture catalog, and open-source guarantees. Pick Ritn3D if you want to draw on your phone without paying, or if you need the plan as an interactive 3D model, a shareable link, or a 3D-printable STL. The clearest practical split: Sweet Home 3D's free tier stops at the desktop and browser, since its phone apps are paid, whereas Ritn3D is free on every surface and charges only for 3D render volume.
Frequently Asked Questions
Everything you need to know. Can’t find the answer you’re looking for? Feel free to reach out.
On desktop and in the browser, yes. Sweet Home 3D is released under the GNU General Public License, so the Windows, macOS, and Linux applications and the online browser version are free with no watermark, no project limit, and no paid tier. Commercial use is permitted. The exception worth knowing is mobile: the official Sweet Home 3D apps on the App Store and Google Play are paid versions. Ritn3D's editor is free on desktop, browser, iOS, and Android alike.
Yes. Official Sweet Home 3D apps are available for iOS and Android, built in HTML5, JavaScript, and WebGL, and they work without an internet connection. They are paid apps rather than free ones. This is a point some comparison articles get wrong, including an earlier version of this site — Sweet Home 3D does have phone apps, they simply are not free. Ritn3D's iOS and Android apps are free to download and its editor is free to use on them.
Sweet Home 3D, comfortably. The standard download bundles over 10,000 furniture models and 400 textures, with more available from the community, and that library is one of the main reasons people stay with it. Ritn3D's furniture placement is deliberately narrower — it is aimed at showing a furnished layout in a generated 3D model rather than at detailed interior decoration, and it is available on Pro and Pro+.
No. Sweet Home 3D lets you import an image as a background and trace walls over it manually, which is a genuine feature but still a manual drawing job. It does not detect walls, doors, or rooms for you. Ritn3D's AI reads a photo or PDF and builds the layout automatically, typically in under two minutes, and you review and correct the detection before generating the 3D model.
Not in the same way. Sweet Home 3D can export images, videos, and 3D file formats such as OBJ, which you then send as files for the recipient to open in something. Ritn3D generates a link that opens an interactive 3D model directly in any browser — the person you send it to installs nothing and creates no account. For client, buyer, or contractor handoff that difference is usually the deciding one.
No. Ritn3D is a commercial product with a free tier, not open-source software. If an open-source licence is a requirement for you — because you want to audit the code, self-host, modify it, or guarantee it can never be paywalled — Sweet Home 3D is the correct choice and Ritn3D will not satisfy that requirement. Ritn3D's argument is the free unlimited editor, free phone apps, and AI 3D conversion, not licensing freedom.
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